Ledger.



No. 810,677. PATENTED JAN. 23, 1906. P. J. & C. B. ROSENBERG.

LEDGER. APPLICATION rum) 11116.23, 1904.

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Unvcntor PATENTED JAN. 23, 1906. F. J. & G. B. ROSENBERG.

LEDGER. APPLIOATION FILED AUG, 23

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DOIL LCCZSGIt-MJK J Amwa m aha/L451; mmwy witnesses #1 (9.6. mam 071)attorney FRANK J. ROSENBERG AND CHARLES B. ROSENBERG,

OF LOS- ANGELES,

CALIFORNIA.

LEDGER.

To all whom it mal concern:

Be it known that we, FRANK J ROSENBERG and CHARLES B. Rosnnnnne,citizens of the United States, residing at Los Angeles, in the county ofLos Angeles and State of California, have invented certain new anduseful Improvements in Ledgers, of which the following is aspecification.

Our invention relates to bookbinding, and more particularly to ledgers.

One of the principal objects is to dispense with the usual cumbersomeindex in the front of the book, and this we accomplish by dividing thebook up into novel sets of stepped leaves, the number of sets beinggoverned by the number of letters employed-that is to say, ordinarilythere would be twenty-six sets-one for each letter of thealphabet but itsometimes occurs, and particularly in banking-houses, that the ledgerembraces only a' certain number of the letters of the alphabet.

leaves to. each The sets of leaves are stepped on both sides, and bothsides are used for indexing purposes, the several sets being separatedfrom each other by spacers.

' A further object is to provide a suitable binder to accommodate and inreality to effeet the stepping of the leaves and which will also preventbuckling and distortion and per-.

mit the ledger to be opened out flat.

Other objects and advantages will be referred to hereinafter. I

The nature, characteristic features, and scope of the invention will bemore clearly understood from the following description,

"taken 1n connection with the accompanying forming a part hereof,whereindrawings,

1 is a perspective view of a ledger Figure embodying features of-ourinvention. Fig.2

is a similar view of the ledger o ened. Fig. 3 is a sectionalelevational view i lustratingthe manner of insertingthe leaves to effectthe correct ste ping of the same. Fig. 4 is anelevationa view of thehull, illustrating the binding-wires, clam and means for o erating thelatter; and Fig. 5 is a sectiona view of the ledger to illustrate thepads used to pompensate for the duplex stepping of the eaves.

usual index, we arrange the leaves in sets, as before stated, accordingto thenumber of letters employed. There are usually twenty Specificationof Letters Patent. 1 Application filed August 23,1904. Serial No.221,839.

vtional leaves, if such be necessary,

plying a key E to one To compensate for the omission of the set, but thenumber of leaves Patented Jan. 23, 1906.

is controlled by the number of accounts, it

being understood that additional leaves may be inserted, if necessary.The leaves are overlapped or stepped on both sides, as clearly shown atm in Figs. 2 and 3. We are thus enabled to use both sides of the leavesfor index ing purposes, and thereby obtain a compact and simple form ofledger, in which no 'ac counts may be lost for lack of indexing.

In order to effect an accurate stepping of the leaves in a simple andconvenient way and to facilitate the ready insertion of addiwe provide ahull A, which may be inexpensively made of metal. The hull or part Aisprovided with a plurality of transversely disposed and alined wires a,which serve to support an carry the projecting strips or tabs 17 of theleaves. I

w designates the spacer-sheets, having lettered tabs which separate theseveral sets of stepped leaves and which may also carry the letters ofthe alphabet. I

B designates clamping members or bars which serve to bind the leavestogether, and, as shown in Fig. 4, they are mounted on spindles O,disposed endwise of the member A. Said spindles are each provided withright and left hand screw-threads, so as to cause said bars tosimultaneously approach or recede from one another. The spindlesthemselves, through the media of the sprocketwheels C and chain or'beltD, are capable of synchronous movement to insure a proper alinement ofthe bars B when approaching or receding. This movement is effected byapof said spindles, as shown in Fig. 4.

Referring to Fig. 5, F represents Lwed eshaped pads which becomenecessary by t e double stepping of the leaves and which may be availedof to insure the pages being kept flat or level and to promote uniformcontact. They may constitute a complemental part of the spacer-sheets wor they may be bound in with the leaves.

It will be obvious to those skilled inthe art to which our inventionrelates that modifications may be made in details without departingfrom-- the spirit and scope of the same. Hence we do not limit ourselvesto'the precise construction and arrangement of parts hereinbeforedescribed, and illustrated in the accompanying drawlng t:

Having described the nature and objects of and provided with tabs 7), onone edge, spacer- .the invention, what we claim as new, and de- Qsheets,and-wedge-shape pads F'alongside of sire to secure by Letters Patent,issaid spacer-sheets, and a suitable binder for 15 1. A ledgerconsisting of suitable clamping the leaves, whereby the stepping isaccu- 5 means and transverse wires (1 for the leaves, a ratelyeflected,substantially as described.

plurality of sets of leaves provided with tabs In testimony whereof weafiix our signaand stepped and indexed on both sides, tures in presenceof two witnesses. I

spacer-sheets for the several sets of leaves, FRANK J. ROSENBERG. andwedge-shape pads F at both ends of said h I CHAS. B. ROSENBERG. 1ospacer-sheets, substantiall as described. Witnesses: t

2. A ledger consisting o .a lurality of sets W. B. B AIN,-

of leaves stepped and indeXe on both sides, H. R. GORDRIOH;

